Abstract: A hearth particle bed system is made up of channel members which form an inclined surface upon which a layer of hearth particles downwardly flow. An air inlet is provided underneath the channel member and apertures are provided in the channel members for redistributing the air flow through the hearth particles. A hearth particle incinerating furnace contains the above-described hearth particle bed system and further contains a combustion chamber and a mechanism for removing used hearth particles and combustion residues. This hearth particle incinerating furnace enables combustion air to be uniformly distributed in the hearth particle bed and can operate in a stable fashion for a long period of time without problems associated with pluggage of the air inlets.

Abstract: The present invention has an object to provide an economically advantageous rumen bypass formulation capable of containing a biologically-active substance at a high concentration by means of using a protective material composted of safe natural product to ecosystem. The preparation of the rumen bypass formulation for ruminants according to the present invention can be accomplished by dispersing a biologically-active substance in an amount of from 50 to 90% by weight relative to the weight of the formulation into a protective material comprising specific salts of aliphatic carboxylic acid and either of fatty acid or aliphatic alcohol at a ratio of the former to the later being in a range of from 30:70 to 10:90.

Abstract: A hearth particle bed incineration furnace is provided in which the hearth particles form a sloped layer bed which moves in the incinerating furnace without being fluidized. The furnace is structured so that the combustion gas is prevented from flowing upward through the inlet for the materials to be incinerated. The structure for preventing the backflow of the combustion gas includes a sidewall which is connected to the incinerated materials inlet, baffles and a member which restrains the upward backflow of combustion exhaust gas. This restraining member is made up of an air intake opening and the air introduced therein is heated through heat exchange with a combustion gas and introduced into the combustion chamber. This allows the amount of air to be introduced in the combustion chamber to be increased and the backflow of combustion exhaust gas to be reduced or eliminated.

Abstract: A hearth particle bed incineration furnace is used to remove dioxin contained in a combustion residue through the mixing of the hearth particle bed particles and the combustion residue at a temperature of at least 400.degree. C., preferably from 400.degree.-600.degree. C., for at least 30 minutes, preferably 30 minutes to 2 hours, through the adjustment of the rate of removal of the mixture. An incineration furnace is provided which can be compact and yet have a large capacity and a stable operation over a long period of time.

Abstract: A crystal refining apparatus having a refining column containing a plurality of vertical shafts having screw blades provided therearound. Each blade rotates in a opposite direction, thereby carrying refined solid crystals upward. The reflux ratio of this apparatus can be much greater than that of the prior art, and highly refined crystals are obtained.The separated liquid extraction chambers are disposed at the bottom and the side of the refining column and a pressure reduction line is connected thereto so that the separated liquid is extracted at a high rate, accordingly the reflux ratio has become great in value.

Abstract: An intermediate shaft comprising a shaft body including an axle portion and a portion having an approximately elliptic shape of cross section, both major and minor axes of the elliptical cross-section portion being longer than a diameter of the axle portion, and a ring-shaped member with a cross-sectional shape analogous to the elliptic cross-section portion. A method for assembling this shaft provides for a vibration damping member intervened between the housing member and elliptic cross-section portion for damping vibrations transmitted from the steering gear box. This method also ensures that the housing and the vibration damping members and the elliptic cross-section portion are fitted into an outer tubular envelope, and the ring-shaped member normally has a gap against the outer tubular envelope and transmits rotational torque from the outer tubular envelope to the elliptic cross-section portion when the ring-shaped member is contacted with the outer tubular envelope.

Abstract: An incinerating furnace which utilizes mineral particles as a hearth bed. Hearth particles are supplied and automatically flow down by gravity into the combustion chamber and onto a movable plane member, such as a rotary table, disposed at the bottom of the furnace. A mixture of used hearth particles and the combustion remainder is removed from the outlet of the furnace as the movable plane member moves and introduced into a receiving tank. Supplemental hearth particles are supplied from a hopper into the combustion chamber and form an oblique hearth bed where incineration takes place.

Abstract: An apparatus for purifying crystals comprises a crystal purifying tower having a transverse cross-section of two partially overlapping circles, stirrers each comprising a rotational shaft passing through the center of each of the circles and having blade members disposed spirally on its surface, a solid-liquid separation plate disposed at the bottom portion of the tower, a liquid take out means disposed below the separation plate, a starting crude crystal feed means disposed above the separation plate, a purified crystal take out means disposed at the upper portion of the tower, heating means disposed in the tower in a multistage manner along the longitudinal direction of the tower, and purified crystal circulation means for cooling a portion of purified crystals taken out from the tower and feeding back the cooled crystals to the tower at at least one portion of the tower.

Abstract: A universal joint yoke is obtained from a flat blank of sheet metal whose general shape is that of a cruciate form having a circular base and two diametrically opposing small semielliptical extensions. The blank of sheet metal is pressed in a forming apparatus so that the two extensions are bent perpendicularly to the circular base in the same direction with a given angle with respect to the circular base and two ribs or contiguous rib are formed along axes of bending to prevent a springback action of the two extensions which constitute two ear portions of the finished yoke. In addition, recesses are extended along a rear surface(s) of the rib(s) so that fasteners such as bolts and nuts for fastening a rubber coupling constituting a lower joint to a lower shaft of a steering system is nestled into the respective recesses. Both ends of the circular base have holes through which the fasteners for fastening the universal joint yoke to the rubber coupling is inserted.

Abstract: Ultrafine fiber of an ethylene tetrafluoride copolymer having an orientation degree (.pi.) of at least 0.6 and an average fineness of 0.0001 to 0.9 denier. A process for producing such fiber or a porous membrane thereof is also disclosed.

Abstract: Crystals containing a molten liquid at the bottom of a purifying tower are cooled, so that three effects i.e., washing, sweating and recrystallization are improved while maintaining a heat balance within a tower to thereby obtain highly pure crystals.

Abstract: A toy including a movable model, components for generating and alternating a magnetic field in response to a direct current, a permanent magnet disposed in the generated magnetic field, and a component for transmitting movement of the permanent magnet in the generated magnetic field to the movable model.

Abstract: An electric switch device, particularly for toys, has contacts for closing and opening an electric circuit, and a switch button element which is movable between a first position in which it does not act on the contacts so that the latter opens the electric circuit, a second position in which a user applies a pressure to the button element and the latter acts on the contact so that the latter closes the electric circuit, but after removal of the user's pressure the button element returns to the first position, and a third position in which the button element acts on the contacts even after removal of the user's pressure so that the contacts keep the electric circuit closed.

Abstract: A toy racing assembly includes a toy racing car having a drive and a speed shifting device, and a toy racing track arranged for guiding the car during running and having at least at one location of the track a formation operative for actuating the speed shifting means of the car when the car passes the formation and engages the latter, whereby the speed of the car is shifted. The engaging formation may be formed as a projection on a gate member which is provided on the track. The track may include a section having an uneven road surface, an irregularly shaped plate cam member extending onto the road surface of the track, and guardrails located at both lateral sides of the track. Thereby, the car can jump on the uneven road surface, collide against the plate cam member, and collide against the lateral guardrails.

Abstract: A method of removing sulfur dioxide from combustion exhaust gas containing sulfur dioxide by contacting the exhaust gas with an aqueous solution containing at least one organic acid salt expressed by the formulaRCOOM(wherein R represents H, CH.sub.3, C.sub.2 H.sub.5 or C.sub.3 H.sub.7, and M represents an alkali metal or NH.sub.4) to efficiently dissolve sulfur dioxide contained in the gas in the form of a sulfite in the aqueous solution by reacting the sulfur dioxide with the salt. The resultant solution which dissolves the sulfite may be contacted with a calcium compound for producing calcium sulfite by reaction of the sulfite with the calcium compound thereby effectively removing the sulfur dioxide in the form of calcium sulfite from the combustion exhaust gas.